ente/lib/ui/code_widget.dart

import 'dart:async';

import 'package:clipboard/clipboard.dart';
import 'package:ente_auth/models/code.dart';
import 'package:ente_auth/store/code_store.dart';
import 'package:ente_auth/utils/toast_util.dart';
import 'package:ente_auth/utils/totp_util.dart';
import 'package:flutter/material.dart';
import 'package:flutter_animation_progress_bar/flutter_animation_progress_bar.dart';
// import 'package:flutter_animation_progress_bar/flutter_animation_progress_bar.dart';
import 'package:flutter_slidable/flutter_slidable.dart';

class CodeWidget extends StatefulWidget {
  final Code code;

  const CodeWidget(this.code, {Key? key}) : super(key: key);

  @override
  State<CodeWidget> createState() => _CodeWidgetState();
}

class _CodeWidgetState extends State<CodeWidget> {
  Timer? _everySecondTimer;
  int _timeRemaining = 30;

  @override
  void initState() {
    super.initState();
    _updateTimeRemaining();
    _everySecondTimer =
        Timer.periodic(const Duration(milliseconds: 200), (Timer t) {
      setState(() {
        _updateTimeRemaining();
      });
    });
  }

  void _updateTimeRemaining() {
    _timeRemaining =
        widget.code.period - (DateTime.now().second % widget.code.period);
  }

  @override
  void dispose() {
    _everySecondTimer?.cancel();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Slidable(
      key: ValueKey(widget.code.hashCode),
      endActionPane: ActionPane(
        motion: const ScrollMotion(),
        children: [
          SlidableAction(
            onPressed: _onDeletePressed,
            backgroundColor: Colors.grey.withOpacity(0.1),
            borderRadius: const BorderRadius.all(Radius.circular(12.0)),
            foregroundColor: const Color(0xFFFE4A49),
            icon: Icons.delete,
            label: 'Delete',
          ),
        ],
      ),
      child: InkWell(
        onTap: () {
          FlutterClipboard.copy(_getTotp())
              .then((value) => showToast(context, "Copied to clipboard"));
        },
        child: SizedBox(
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              FAProgressBar(
                currentValue: _timeRemaining / widget.code.period * 100,
                size: 4,
                animatedDuration: const Duration(milliseconds: 200),
                progressColor: Colors.orange,
                changeColorValue: 40,
                changeProgressColor: Colors.green,
              ),
              const SizedBox(
                height: 10,
              ),
              Padding(
                padding: const EdgeInsets.only(left: 16, right: 16),
                child: Text(
                  Uri.decodeFull(widget.code.issuer),
                  style: Theme.of(context).textTheme.headline6,
                ),
              ),
              Container(
                padding: const EdgeInsets.only(right: 16),
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.end,
                  children: [
                    Text(
                      "next",
                      style: Theme.of(context).textTheme.caption,
                    ),
                  ],
                ),
              ),
              Container(
                padding: const EdgeInsets.only(left: 16, right: 16),
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.start,
                  children: [
                    Expanded(
                      child: Text(
                        _getTotp(),
                        style: const TextStyle(fontSize: 24),
                      ),
                    ),
                    Text(
                      _getNextTotp(),
                      style: const TextStyle(
                        fontSize: 24,
                        color: Colors.grey,
                      ),
                    ),
                  ],
                ),
              ),
              const SizedBox(
                height: 32,
              ),
            ],
          ),
        ),
      ),
    );
  }

  void _onDeletePressed(_) {
    final AlertDialog alert = AlertDialog(
      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10)),
      title: Text(
        "Delete code?",
        style: Theme.of(context).textTheme.headline6,
      ),
      content: const Text(
        "Are you sure you want to delete this code? This action is irreversible.",
      ),
      actions: [
        TextButton(
          child: const Text(
            "Delete",
            style: TextStyle(
              color: Colors.red,
            ),
          ),
          onPressed: () {
            CodeStore.instance.removeCode(widget.code);
            Navigator.of(context, rootNavigator: true).pop('dialog');
          },
        ),
        TextButton(
          child: Text(
            "Cancel",
            style: TextStyle(
              color: Theme.of(context).colorScheme.onSurface,
            ),
          ),
          onPressed: () {
            Navigator.of(context, rootNavigator: true).pop('dialog');
          },
        ),
      ],
    );

    showDialog(
      context: context,
      builder: (BuildContext context) {
        return alert;
      },
      barrierColor: Colors.black12,
    );
  }

  String _getTotp() {
    try {
      return getTotp(widget.code);
    } catch (e) {
      return "Error";
    }
  }

  String _getNextTotp() {
    try {
      return getNextTotp(widget.code);
    } catch (e) {
      return "Error";
    }
  }

  Color _getProgressColor() {
    final progress = _timeRemaining / widget.code.period;
    if (progress > 0.6) {
      return Colors.green;
    } else if (progress > 0.4) {
      return Colors.yellow;
    } else if (progress > 2) {
      return Colors.orange;
    }
    return Colors.red;
  }
}